* s/mu4e-attachments-actions/mu4e-attachment-actions/

emacs/mu4e-utils.el

@@ -395,7 +395,7 @@ point in eiter the headers buffer or the view buffer."
 
 (defun mu4e-choose-action (prompt actions)
   "Ask user with PROMPT to choose some action from ACTIONS. ACTIONS
-is a list of actions like `mu4e-view-attachments-actions',
+is a list of actions like `mu4e-view-attachment-actions',
 `mu4e-view-actions', `mu4e-header-actions'. Returns the
 action (function) to invoke, or nil. "
   (if (null actions)

emacs/mu4e-vars.el

@@ -300,7 +300,7 @@ where:
 (defalias 'mu4e-view-open-attachment-emacs 'mu4e--dummy-func)
 (defalias 'mu4e-view-open-pipe-attachment  'mu4e--dummy-func)
 
-(defvar mu4e-view-attachments-actions
+(defvar mu4e-view-attachment-actions
   '( ("open-with" ?w mu4e-view-open-attachment-with)
      ("in-emacs"  ?e mu4e-view-open-attachment-emacs)
      ("pipe"      ?| mu4e-view-pipe-attachment))

emacs/mu4e-view.el

@@ -277,7 +277,7 @@ is nil, and otherwise open it."
       (define-key map "e" 'mu4e-view-save-attachment)
       (define-key map "o" 'mu4e-view-open-attachment)
       (define-key map "A" 'mu4e-view-attachment-action)
-      
+
       ;; marking/unmarking
       (define-key map (kbd "<backspace>") 'mu4e-mark-for-trash)
       (define-key map "d" 'mu4e-view-mark-for-trash)
@@ -692,7 +692,7 @@ message-at-point, then do it. The actions are specified in
   (let* ((msg (or msg (mu4e-message-at-point t)))
 	  (actionfunc (mu4e-choose-action
 			"Action on attachment: "
-			mu4e-view-attachments-actions))
+			mu4e-view-attachment-actions))
 	  (attnum (mu4e--get-attach-num "Which attachment" msg)))
     (when (and actionfunc attnum)
       (funcall actionfunc msg attnum))))